Shaking the myth: body mass, aggression, steroid hormones, and social dominance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F15%3A00448305" target="_blank" >RIV/68081766:_____/15:00448305 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ygcen.2015.09.033" target="_blank" >http://dx.doi.org/10.1016/j.ygcen.2015.09.033</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ygcen.2015.09.033" target="_blank" >10.1016/j.ygcen.2015.09.033</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Shaking the myth: body mass, aggression, steroid hormones, and social dominance

Popis výsledku v původním jazyce

In social mammals, the position of a male in the group?s hierarchy strongly affects his reproductive success. Since a high social rank is often gained through competition with other males, selection should favour bigger males over smaller ones. We may therefore predict faster growth and/or delayed sexual maturity in dominant males. Likewise, dominants should have higher levels of testosterone, hormone important in many aspects of male dominance. Less obvious is the relationship between dominance and levels of corticosterone but generally higher concentrations are expected in subordinate individuals. We studied body growth, sexual maturation and endocrinal changes in males of two house mouse subspecies, raised in fraternal pairs. Since Mus musculus domesticus is the subspecies which dominates mutual encounters with M. m. musculus we predicted higher growth rate, delayed puberty and aggression, and higher testosterone and corticosterone levels in domesticus males compared to musculus. In

Název v anglickém jazyce

Shaking the myth: body mass, aggression, steroid hormones, and social dominance

Popis výsledku anglicky

In social mammals, the position of a male in the group?s hierarchy strongly affects his reproductive success. Since a high social rank is often gained through competition with other males, selection should favour bigger males over smaller ones. We may therefore predict faster growth and/or delayed sexual maturity in dominant males. Likewise, dominants should have higher levels of testosterone, hormone important in many aspects of male dominance. Less obvious is the relationship between dominance and levels of corticosterone but generally higher concentrations are expected in subordinate individuals. We studied body growth, sexual maturation and endocrinal changes in males of two house mouse subspecies, raised in fraternal pairs. Since Mus musculus domesticus is the subspecies which dominates mutual encounters with M. m. musculus we predicted higher growth rate, delayed puberty and aggression, and higher testosterone and corticosterone levels in domesticus males compared to musculus. In

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

General and Comparative Endocrinology

ISSN

0016-6480

e-ISSN

—

Svazek periodika

223

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

16-26

Kód UT WoS článku

000366438300003

EID výsledku v databázi Scopus

2-s2.0-84944253932